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Finding the Fourth Proportional to 64,126.71, 96,191.70 and 30,384.81

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Solution

The fourth proportional to 64,126.71, 96,191.70 and 30,384.81 is: 45,577.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,126.71 : 96,191.70 = 30,384.81 : x
  2. Step 2: Convert to fraction form
    64,126.71/96,191.70 = 30,384.81/x
  3. Step 3: Cross multiply
    64,126.71x = 96,191.70 × 30,384.81
  4. Step 4: Simplify right side
    64,126.71x = 2,922,766,047.12
  5. Step 5: Solve for x
    x = 2,922,766,047.12/64,126.71
  6. Step 6: Final answer
    x = 45,577.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.